Analysis on Load Characteristics of a Nearly Zero Energy Office Building in Severe Cold Area
The load characteristics of a nearly zero energy office building in severe cold area were studied in order to gradually improve the performance-based design,and to achieve the performance goals for nearly zero energy buildings.A nearly zero energy office building in the design stage taken as the research object,the energy consumption of the reference building and the target building were simulated using DesignBuilder software.The simulation results were analyzed and compared.The cumulative annual heating load index of the target building is 15.96(kW·h)/m2 and the cumulative annual cooling load index is 19.94(kW·h)/m2.Compared with the 65％energy efficient building,the cumulative total load index of the target building is reduced by 45.86％.The heating load of the target building is reduced by 64.34％and the cooling load of the target building is reduced by 5.89％.So in the summer the cooling load of the nearly zero energy office building in Shenyang is slightly higher than the heat load in the winter.Each energy-saving technology has a promoting effect on reducing the heat load and the cumulative total load index.The influence of internal heat disturbances and solar heat from external windows on the cold and heat load index should be given attention.
severe cold areanearly zero energy buildingoffice buildingDesignBuilderload simulation
NETL
NSTL
万方数据
